CN103024326A - Video backup method and system based on security and protection home gateway - Google Patents
Video backup method and system based on security and protection home gateway Download PDFInfo
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Abstract
The invention discloses a video backup method and system based on a security and protection home gateway. The video backup method comprises the following steps that: the home gateway of a network video system periodically sends a link detection report to a server and judges whether a current network state is normal or not according to a link reply report responded by the server; if the current network state is normal, the home gateway uploads current video data of the network video system to the server; and if the current network state is abnormal, the home gateway stores the current video data of the network video system to a local storage space of the home gateway. The video backup method and system provided by the invention solve the problem that a home gateway monitoring video cannot be stored into a long-distance video storage server when the long-distance video storage server or a network is abnormal in the prior art through a local data backup mechanism when the network is abnormal, so that the integrity of video data can be effectively ensured, and the risk of losing the video data can be reduced.
Description
Technical field
The present invention relates to the home gateway field of video monitoring, when particularly the video monitoring remote storage of home gateway security protection aspect was unusual, monitor video went to the method and system that store home gateway this locality and store video is uploaded.
Background technology
Network video monitor and control system is by wired or wireless IP (Internet Protocol, the agreement that interconnects between the network) network transmits video information with digitized form, as long as video monitoring and record just necessarily can be realized in the place that home gateway can arrive, and this monitoring can be carried out perfect adaptation with a lot of new systems.
Video monitoring is the important component part of safety-security area, and it is the stronger integrated system of a kind of prevention ability, video monitoring is directly perceived with it, accurately, in time and the information content abundant and be widely used in many occasions.Along with the develop rapidly of computer, network and image processing, transmission technology, Home Gateway Technology, Video Supervision Technique has also had significant progress in recent years.
Along with the large scale deployment of home gateway, the related safety-security area of home gateway is subject to more and more people's attention.Because home gateway One's name is legion, and the central role in home network, caused the technological revolution of Video Surveillance Industry, be subject to academia, the great attention of industrial circle and the department of use, Many researchers and mechanism all attempt home gateway is applied to safety-security area, and it is particularly outstanding that the Network Video Surveillance field just seems.
Traditional supervisory control system need to arrange a Surveillance center specially, and the user is if checking monitoring picture or check Video Document must go to Surveillance center.Surveillance center needs the personnel of specialty to carry out maintenance and management, and hardware and software cost is relatively high.If the installation network video monitor and control system, the manager can use the computer monitor real-time pictures of oneself or check Video Document, and support many people to monitor separately in the office of oneself, is independent of each other.Adopt the system of distributed structure/architecture, network monitoring device is distributed in different places with video server, the user only need use terminal equipment can watch in real time video monitoring such as the log-on webpage such as PC, PDA (Personal Digital Assistant, palmtop PC), mobile phone or client.
Yet network is not omnipotent, and the Internet video storage system various faults can occur unavoidably in the routine use process, as: server failure, network failure, machine room have a power failure, and occur more serious time delay and packet loss etc. in the network.Above situation occurs and can cause the data of video monitoring can't be uploaded to the long-distance video storage server, can not guarantee real-time and the integrality of monitor video, can produce user's use and have a strong impact on.
Summary of the invention
The object of the present invention is to provide a kind of video backup method and system based on security protection type home gateway, can solve better in the prior art webserver or network and exist under the abnormal conditions, the home gateway monitor video can't be saved to the problem of long-distance video storage server.
According to an aspect of the present invention, provide a kind of video backup method based on security protection type home gateway, described method comprises:
The home gateway of network video system regularly sends link detection message to server, and replys message according to the link of described server response and judge current network state;
If current network state is normal, the described home gateway video data that described network video system is current is uploaded to described server;
If current network state is unusual, the described home gateway video data that described network video system is current is saved to the local memory space of described home gateway.
Wherein, described link is replied message and is carried Link State, and wherein, described Link State comprises that network normal condition, long-distance video storage server inaccessible state, current network exist packet loss or time delay state.
Wherein, the step of judgement current network state comprises:
When described Link State was described network normal condition, current network state was normal;
When described Link State was described long-distance video storage server inaccessible state, current network state was unusual;
Described Link State is described current network when having packet loss or time delay state, if described packet loss or time delay do not affect the quality of described video data, then current network state is normal, otherwise current network state is unusual.
Wherein, described home gateway is saved to local memory space by the described video data of indicating device reminding user after video data is saved to local memory space.
Wherein, after described current network state was unusual, described home gateway reduced the frequency that sends link detection message to server.
Wherein, video data is uploaded to described server is automatically to upload or manually upload to described home gateway.
According to a further aspect in the invention, provide a kind of video standby system based on security protection type home gateway, described system comprises:
Video monitoring equipment is used for monitoring controlled object and generating video data;
Home gateway, be used for regularly sending link detection message to server, and reply message according to the link of described server response and judge current network state, if current network state is normal, current described video data is uploaded to described server, if current network state is unusual, current described video data is saved to the local memory space of described home gateway.
Server for the link detection message that responds described home gateway, sends link to described home gateway and replys message.
Wherein, described home gateway comprises:
The link detecting module is used for regularly sending link detection message and judging current network state according to the link answer message of described server response to described server;
The video file backup module is for the local memory space that current described video data is saved to described home gateway when current network state is unusual;
Video file upload function module is used for when current network state is normal current described video data being uploaded to described server.
Wherein,
Described server also is used for sending the link that carries Link State to described home gateway and replys message, and wherein, described Link State comprises that network normal condition, long-distance video storage server inaccessible state, current network exist packet loss or time delay state.
Wherein,
Described link detecting module also is used for when detecting described Link State and be described network normal condition, judge that current network state is normal, when detecting described Link State and be described long-distance video storage server inaccessible state, judge that current network state is unusual, that described current network is when existing packet loss or time delay state detecting described Link State, judge whether described packet loss or time delay affect the quality of described video data, if do not affect then judge that current network state is normal, otherwise judge that current network state is unusual.
Compared with prior art, beneficial effect of the present invention is: the present invention can guarantee the integrality of video monitoring data preferably, effectively avoids the loss of data in the Network Abnormal situation, has reduced the risk of loss of data.
Description of drawings
Fig. 1 is the flow chart of a kind of video backup method based on security protection type home gateway of providing of the embodiment of the invention;
Fig. 2 is the link detection message state diagram that the embodiment of the invention provides;
Fig. 3 is the structural representation of a kind of video standby system based on security protection type home gateway of providing of the embodiment of the invention.
Embodiment
To a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment only is used for description and interpretation the present invention, is not intended to limit the present invention below in conjunction with accompanying drawing.
Fig. 1 is the flow chart of a kind of video backup method based on security protection type home gateway of providing of the embodiment of the invention, as shown in Figure 1, said method comprising the steps of:
Step S101, link detecting.
Fig. 2 is the link detection message state diagram that the embodiment of the invention provides, as shown in Figure 2, the link detecting module of home gateway is that server sends link detecting Request message to the long-distance video storage server regularly, after the long-distance video storage server receives the message of home gateway transmission, send link to home gateway and reply the reply message, wherein, link is replied the relevant information that carries Link State in the message.Link State comprises three kinds: Link State was " 300 " when current network was normal; Link State was " 301 " when current network or long-distance video storage server were unreachable; Current network state exists packet loss or time time-delay Link State to be " 302 ".
Step S102 judges Link State.
After the link detecting module receives the link answer message of long-distance video storage server, judge current Link State according to the specific identifier in the message, and current Link State is exported to video file backup module and the video file upload function module of described home gateway.
If Link State is " 300 ", show that the network of this moment is normal, the long-distance video storage server can normally receive the video data that home gateway is uploaded.The link detecting module sends upload notifications, execution in step S105 to video file upload function module.
If Link State is " 301 ", inaccessible state appears in the network or the long-distance video storage server that show this moment, ICMP (the Internet Control Message Protocol that sends, Internet Control Message Protocol) request is that link detection message can't be received link answer message, the link detecting module sends backup notice, execution in step S104 to the video file backup module.When the long-distance video storage server initiatively cuts off link with home gateway, can send and discharge the release message, when home gateway is received this message, show that the long-distance video storage server is unreachable, stop to send link detection message.
If Link State is " 302 ", the expression current network state exists packet loss or time delay, execution in step S103.
Step S103, home gateway judge whether network jitter affects video quality.
If it is " 302 " that the link detecting module is received Link State, packet loss or time-delay have appearred in the network that shows this moment, the current network condition of home gateway statistics this moment, if the packet loss in the network or time delay are the situation that network jitter does not affect the video file quality, Link State is set is " 302-2 ", the link detecting module sends upload notifications, execution in step S105 to video file upload function module; If the packet loss in the network or time delay have a strong impact on the mass formation of video file, Link State is set is " 302-1 ", the link detecting module sends the backup notice to the video file backup module, the video file backup module of notice home gateway is kept at monitor video in the memory space of home gateway execution in step S104 simultaneously.
Step S104, the local backup video.
The video file backup module is opened local monitor video backup functionality after receiving the backup notice of link detecting module transmission, the current video file of recording is saved in the memory space of home gateway, and such as portable hard drive, USB flash disk, flash card etc.
When the monitor video file is saved to local memory space, it is indicating device that the video file backup module can send message notification state/indicating lamp module, and the color by indicator light and state reminding user are owing to network reason video monitoring file is saved in the home gateway memory space.
Monitor video is after preserve this locality, and the link detecting module regularly sends link detection message, execution in step S101 to the long-distance video storage server according to the periodicity link detecting time that arranges.
Step S105, video is uploaded.
After video file upload function module receives the upload notifications of link detecting module, will monitor File Upload to the long-distance video storage server, the local backup function of home gateway is not opened.
Video file upload function functions of modules can be by User Defined, and the user is configurable manually to upload and automatically upload.When manually uploading, the user is by FTP (the File Transfer Protocol of home gateway WEB page configuration remote storage server, file transfer protocol (FTP)) address, and the video file that this locality is stored is uploaded to the long-distance video storage server, the user can select to browse video or the deletion video file of recording, file is uploaded or is deleted, and status indicator lamp can return to initial condition.When automatically uploading, long-range ftp server relevant information need to be set equally, such as the username and password of ftp address authentication.When the link detecting state is " 300 " or " 302-2 "; although it is normal or undesired but after little on video quality impact that the link detecting module detects long-distance video storage server link; local video backup functionality module termination work; transmission module is uploaded to the video of this locality storage under the long-distance video storage server specified file path by FTP on the video file; and the starting and ending time-related attributes that file is stored is kept in these data; the file of simultaneously the home gateway memory space being preserved is deleted, and status indicator lamp is returned to initial condition.
After monitor video was uploaded to the long-distance video storage server, the link detecting module regularly sent link detection message, execution in step S101 to the long-distance video storage server according to the periodicity link detecting time that arranges.
Fig. 3 is the structural representation of a kind of video standby system based on security protection type home gateway of providing of the embodiment of the invention, as shown in Figure 3, described system comprises that it is server, remote watching video equipment that video equipment, long-distance video storage server are watched in home gateway memory device, home gateway, video monitoring equipment, this locality.
Video monitoring equipment is used for monitoring controlled object and generating video data.
The home gateway memory device is used for storing the video data that described video monitoring equipment generates when network state is unusual.
This locality watches video equipment to be used for checking at any time the video of storing on the described home gateway memory device.
Home gateway is used for regularly sending link detection message to server, and replys message according to the link of described server response and judge current network state.Home gateway comprises that link detecting module, video file backup module, video file upload function module, state/indicating lamp module are indicating device.
The link detecting module is for detection of network link status.The link detecting module arranges the periodically link detecting time, regularly sends link detection message to the long-distance video storage server.After the long-distance video storage server receives the message of link detecting module transmission, send the link that carries Link State to home gateway and reply message.After the link detecting module receives the link answer message of long-distance video storage server, judge current Link State according to the specific identifier in the message, and current Link State is exported to video file backup module and the video file upload function module of described home gateway.If Link State is " 300 ", show that the network of this moment is normal, the long-distance video storage server can normally receive the video data that home gateway is uploaded, and the link detecting module sends upload notifications to video file upload function module.If Link State is " 301 ", show that inaccessible state appears in network or the long-distance video storage server of this moment, the ICMP request of transmission can't be received link answer message, the link detecting module sends the backup notice to the video file backup module; If Link State is " 302 ", the expression current network state exists packet loss or time delay, this moment, the link detecting module was further added up current network condition, if the packet loss in the network or time delay do not affect the video file quality, then the link detecting module sends upload notifications to video file upload function module; If the packet loss in the network or time delay have a strong impact on the mass formation of video file, then the link detecting module sends backup messages to the video file backup module, and the video file backup module of notice home gateway is kept at monitor video in the memory space of home gateway simultaneously.Bring load in order to reduce link detection message to home gateway, after judging that network state is unusual, the link detecting module suitably reduces the transmission frequency of link detection message.
The video file backup module is used for the backup video file.The video file backup module is opened local monitor video backup functionality after receiving the storage notice of link detecting module transmission, the current video file of recording is saved in the memory space of home gateway, and such as portable hard drive, USB flash disk, flash card etc.The monitor video file is saved to local memory space simultaneously, and the video file backup module can send message notification state/indicating lamp module change led status.
Video file upload function module is used for the uploaded videos file.After video file upload function module receives the upload notifications of link detecting module, will monitor File Upload to the long-distance video storage server, the local backup function that do not open home gateway this moment.Video file upload function functions of modules can be by User Defined, and the user is configurable manually to upload and automatically upload.When manually uploading, the user is by the FTP address of home gateway WEB page configuration remote storage server, and the video file that this locality is stored is uploaded to the long-distance video storage server, the user can select to browse video or the deletion video file of recording, after file was uploaded or deleted, status indicator lamp can return to initial condition.When automatically uploading; long-range ftp server relevant information need to be set equally; username and password such as ftp address authentication; when the link detecting state is " 300 " or " 302-2 "; although it is normal or undesired but after little on video quality impact that the link detecting module detects long-distance video storage server link; local video backup functionality module termination work; transmission module is uploaded to the video of this locality storage under the long-distance video storage server specified file path by FTP on the video file; and the starting and ending time-related attributes that file is stored is kept in these data; the file deletion of simultaneously the home gateway memory space being preserved, and recover led status to initial condition.
State/indicating lamp module the abnormal monitoring video occurs for the reminding user network and is stored in this locality.After state/indicating lamp module received the notice of change indicator light that the video file backup module sends and state, the flicker situation of change indicator light or color were notified the user because Network Abnormal causes monitor video to be recorded and is kept at local spatial.
The long-distance video storage server is used for the link detecting request of responsivehomes gateway and preserves video file when network state is normal.The long-distance video storage server sends link to home gateway and replys message after receiving the link detection message that the link detecting module of home gateway sends.When the long-distance video storage server initiatively cut off with the contacting of home gateway, the long-distance video storage server sent related interrupts message to home gateway, after home gateway is received interrupt message, does not start the link detecting module.
The long-distance video evaluation equipment is used for watching the video file on the long-distance video storage server.The long-distance video evaluation equipment can be mobile phone or PC, is connected through the internet to the long-distance video storage server, checks the video file of storing on the long-distance video storage server.
In sum, the present invention passes through the local data back mechanism when abnormal conditions appear in network, having solved prior art medium-long range video storage server or network exists under the abnormal conditions, the home gateway monitor video can't be saved to the problem of long-distance video storage server, effectively guarantee the integrality of video data, reduced the risk of video data loss.
Although above the present invention is had been described in detail, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all should be understood to fall into protection scope of the present invention.
Claims (10)
1. video backup method based on security protection type home gateway is characterized in that described method comprises:
The home gateway of network video system regularly sends link detection message to server, and replys message according to the link of described server response and judge current network state;
If current network state is normal, the described home gateway video data that described network video system is current is uploaded to described server;
If current network state is unusual, the described home gateway video data that described network video system is current is saved to the local memory space of described home gateway.
2. method according to claim 1, it is characterized in that, described link is replied message and is carried Link State, and wherein, described Link State comprises that network normal condition, long-distance video storage server inaccessible state, current network exist packet loss or time delay state.
3. method according to claim 2 is characterized in that, judges that the step of current network state comprises:
When described Link State was described network normal condition, current network state was normal;
When described Link State was described long-distance video storage server inaccessible state, current network state was unusual;
Described Link State is described current network when having packet loss or time delay state, if described packet loss or time delay do not affect the quality of described video data, then current network state is normal, otherwise current network state is unusual.
4. method according to claim 3 is characterized in that, described home gateway is saved to local memory space by the described video data of indicating device reminding user after video data is saved to local memory space.
5. method according to claim 3 is characterized in that, after described current network state was unusual, described home gateway reduced the frequency that sends link detection message to server.
6. each described method is characterized in that according to claim 1-5, and it is automatically to upload or manually upload that described home gateway is uploaded to described server with video data.
7. video standby system based on security protection type home gateway is characterized in that described system comprises:
Video monitoring equipment is used for monitoring controlled object and generating video data;
Home gateway, be used for regularly sending link detection message to server, and reply message according to the link of described server response and judge current network state, if current network state is normal, current described video data is uploaded to described server, if current network state is unusual, current described video data is saved to the local memory space of described home gateway.
Server for the link detection message that responds described home gateway, sends link to described home gateway and replys message.
8. system according to claim 7 is characterized in that, described home gateway comprises:
The link detecting module is used for regularly sending link detection message and judging current network state according to the link answer message of described server response to described server;
The video file backup module is for the local memory space that current described video data is saved to described home gateway when current network state is unusual;
Video file upload function module is used for when current network state is normal current described video data being uploaded to described server.
9. system according to claim 8 is characterized in that,
Described server also is used for sending the link that carries Link State to described home gateway and replys message, and wherein, described Link State comprises that network normal condition, long-distance video storage server inaccessible state, current network exist packet loss or time delay state.
10. system according to claim 9 is characterized in that,
Described link detecting module also is used for when detecting described Link State and be described network normal condition, judge that current network state is normal, when detecting described Link State and be described long-distance video storage server inaccessible state, judge that current network state is unusual, that described current network is when existing packet loss or time delay state detecting described Link State, judge whether described packet loss or time delay affect the quality of described video data, if do not affect then judge that current network state is normal, otherwise judge that current network state is unusual.
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